Holder and carrier for riveting machines



Feb. 27, 1934. A. R. HAVENER HOLDER AND CARRIER FOR RIVETING MACHINES Filed May 13, 1933 WWW (LYTLlA- utv gm b m Patented Feb. 27, 1934 UNETED STATES 'ATET OFFICE HOLDER AND CARRIER FOR RIVETING MACHINES Application May 13, 1933. Serial No. 670,877

14 (llaims.

This invention relates to an improved holder and carrier for a riveting machine.

One of the important objects of the present invention is to provide means for receiving and pc- I sitioning a piece of material provided with an opening or perforation, and to position a pronged rivet in alignment with said opening or perforation in order that said piece of material may be attached to another piece of material by said rivet through the co-operative action of a driver and anvil.

A further object of the invention is the provision of resilient means for holding said perforated piece of material in proper position for attachment to another piece of material while the rivet is being driven down to accomplish said attachment.

Another object of the invention is the provision of a device adapted for fastening a piece of IO- material to a moth-proof bag adjacent the opening thereof so that the two edges of the bag opening may be fastened together by manipulation of said piece of material upon the rivet whereby it is attached to one side 01" the bag adjacent said opening.

With these and other objects hereinafter set forth, the invention consists in the novel features and combination of elements hereinafter illustrated and described and particularly pointed out in the claims.

Briefly, my invention, in its preferred form, contemplates a holder and c rrier comprising a pair of oppositely disposed plates mounted on a pair of spring arms fastened to a vertically mov able slide. The adjacent inner faces of said plates are recessed to form a chamber corresponding in cross section to the shape of the head of the rivet and said recesses are provided with inclined complementary ridges adapted to support a pronged rivet supplied to the holder by a raceway. Complementary grooves or recesses, together constituting a guideway, are formed in the bottom ends of the plates for receiving and holding a piece of material perforated or provid- 46 ed with an opening or openings for receiving the prongs of the rivet to fasten it to another piece of material.

The ridges for supporting the rivet are beveled to permit the rivet to be driven downwardly by a driver to accomplish the fastening operation. During the downward movement of the rivet, the holder plates are separated to a slight degree and to retain the material in the guideway in proper position at this time resilient means is provided 55 for exerting a lateral or edgewise pressure on said material which is maintained until the prongs of the rivet pass through the openings in the material and the head of the rivet forces it out of said guideway and onto said material to which it is to be fastened.

In the accompanying drawing for the purpose of illustrating the application of the invention, there is shown a holder and carrier adapted for fastening a flat hook shaped, slotted plate to the edge of a moth proof bag by a two-pronged rivet, 5 in which Fig. 1 is a side elevation of a holder and carrier constructed and adapted to be operated in accordance with the invention, a portion of a driver and raceway being illustrated in connection therewith;

Fig. 2 is a rear elevation of the parts illustrated in Fig. 1, the driver and raceway being omitted;

Fig. 3 is an underneath plan of the parts illustrated in Fig. 1, the raceway and driver being omitted;

Fig. 4 is a View similar to Fig. 1 with the right hand holder plate and its supporting spring removed, a two-pronged rivet and a hooked plate being illustrated in their respective positions on 30 said plate;

Fig. 5 is a side elevation of the other holder plate viewed in the opposite direction to that in which Fig. 4 is viewed;

Fig. 6 is a section elevation taken on line 6-6 looking toward the left in Fig. 1;

Fig. 7 is a view in elevation similar to Fig. 4, but with the parts in the relative positions occupied thereby at the end of the clinching of the rivet the material, the hooked plate being shown in connection therewith in section.

Fig. 8 is a perspective View of a spring member carried by the holder plate shown in Fig. 5.

Like numerals refer to like parts throughout the several views of the drawing.

Referring to the drawing, 10 is a holder and carrier slide to which a pair of oppositely disposed spring arms 11 and 12 are fastened by a bolt 13 and nut 14. These spring arms are ofiset at their lower ends and have fastened thereto respectively a pair of oppositely disposed plates 15 and 16 which are interposed between the spring arms.

In its lower face the plate 15 is provided with a groove 17 which has a recessed or inclined wall 18 and the plate 16 also has in its under face a groove 19 with a similar recessed side wall 20. The two grooves 17 and 19 combine to form a guideway 21 (Fig. 1) which is adapted to receive and hold a fiat piece of material 22 bent at one end to form a hook 23 and having a longitudinal slot 24 in its body portion.

The plates 15 and 16 are recessed on their inner faces to form a chamber 25 adapted to receive a two-pronged rivet 26 and to form a pair of oppositely disposed inclined bevelled ridges 27 and 28 respectively, which ridges support the twopronged rivet 26 at the opposite sides of its head 29, as particularly illustrated. in Fig. 6. The rivets are delivered into the chamber 25 by a raceway 30 in a manner well-known to those skilled in the art.

The rivet 26 and the hooked plate 22 are driven out from between the holder plates 15 and 16 by a driver 31, Figs. 1 and 7, the prongs of the rivet passing downwardly through the slot 24 through a sheet of material 32 and through a disc 33 on the under side of said sheet material and then the prongs 34 of the rivet are clinched by engaging an anvil 35 and are turned into the disc 33, as shown in Fig. 7.

The hooked plate 22 is inserted in the guideway 21 as illustrated in the drawing, by hand, and is positioned longitudinally thereof with relation to the rivet driver 31 by means hereinafter described.

As the rivet is driven downwardly by the driver 31, the holder plates 15 and 16 are separated and to insure the retention of the hooked plate 22 in the guideway 21 as the holder plates separate and until driven out by the rivet and the driver, resilient means is provided for exerting an edgewise pressure on the hooked plate.

One form of such means is shown comprising a reversed U-shaped spring plate 40 having a side flange l1 turned at right angles whereby it is fastened to the rear end of holder plate 15 by screws 42. The side flange 41 also serves as a stop for positioning the hooked plate 22 longitudinally in the guideway. The plate 40 normally engages the outer side face of the holder plate 15 and the end of its free arm is turned inwardly to form a nose 43 positioned to engage a side edge of the hooked plate 22 inserted in the guideway 21, the holder being cut away at 44 to afford a passage for said nose to make said engagement. The end of the nose is inclined so that when a hooked plate 22 is inserted in the guideway one of its side edges will engage and ride on said inclined edge as shown in Fig. 8 and push the nose of the spring outwardly into the position shown in Fig. 6. When the holder plates separate, the nose of the spring will move inwardly to maintain its pressure and to hold the hooked member in position in the guideway until is forced downwardly during the operation of the machine.

The general operation of the mechanism hereinbefore described is as follows: The two-pronged rivets 26 descend the raceway 30 and the lowermost rivet in the raceway enters the chamber 25 between the plates 15 and 16 of the rivet holder, sliding into the chamber 25, and assuming the position illustrated in Fig. 4, the opposite edges of the rivet resting upon the ridges 2'7 and 28 in the plates 15 and 16. The hooked plate 22 having been placed in position, as illustrated in Figs. 1 and 4, the driver 31 descends and the lower end thereof passes into the chamber 25 and contacts with the top 29 of the rivet 26. The carrier slide and the holder are then pushed down by the driver until the carrier slide engages a stop above the material 32 which is positioned upon the anvil 35, whereupon when the driver descends still further the two-pronged rivet will be thrust downwardly in the chamber 25, the two plates 15 and 16 spreading apart to allow the said rivet to pass downwardly. Notwithstanding the holder plates separate the spring plate 40 continues to exert an edgewise pressure on the hooked plate 22 to hold it in the guideway. The prongs of the rivet pass through the slot 24 in the hooked plate 22 and then through the material 32 and through the disc 33 positioned between the material 32 and the anvil 35.

The driver continues to push the rivet down- Wardly until the prongs 3e are clinched by the anvil 35 into the disc 33. During the latter part of the descent of the driver, the hooked plate 22 will be forced out from between the plates 15 and 16 and out of engagement with the nose 43 of the spring plate 40 by the head of the rivet 26 as it is driven downwardly by the driver thus attached to the upper face of the ma terial 32, all as illustrated in Fig. '7. The driver then moves upwardly and the carrier slide with the rivet and hooked plate holder also move upwardly being carried upwardly by a spring 38.

It will be observed that the hooked plate 22 remains suspended on the holder plates 15 and 16 with its opposite edges positioned in the grooves 17 and 19 until the holder plates begin to separate due to the downward movement of the rivet 26 impelled by the driver 31. As the holder plates separate the edgewise pressure eX- erted on the hooked plate 22 by the spring 40 maintains said plate in horizontal position with one edge in engagement with the groove 19 in holder plate 16 and continues to hold the plate 22 in this position, irrespective of the separation of the holder plates, until the head of the rivet 26 engages the plate 22 and forces it downwardly upon the material 32.

The provision of means for maintaining a constant edgewise pressure on the hooked plate during the separation of the holder plates insures the retention of the hooked plate in the horizontal position necessary for the proper attachment of it to the material 32 and eliminates all possibility of defective work due to a change in position of the hooked plate during the downward movement of the rivet and driver.

The driver 31 is operated by suitable mechanism and its downward descent operates the carrier slide 10 in a manner well-known to those skilled in this art and after the general manner described in United States Letters Patent No. 879,395 issued to J. E. Perrault, February 25, 1908, for Machine for setting rivets.

In the foregoing the invention has been described as embodied in a structure designed for holding a particular shape of rivet and material but it is to be understood that it may, within the scope of the invention, be adapted to other shapes and forms of rivets and materials by slight changes which would be apparent and obvious to one skilled in the art. The invention is, therefore, not to be limited except as set forth in the following claims,

What I claim is:

l. A holder and carrier for a riveting machine having, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely disposed plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves, forming a guideway adapted to receive and hold a flat piece of material and a resilient member mounted on one of said plates for ex- 2. A holder and carrier for a riveting machinehaving, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely dispose plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves, forming a guideway adapted to receive and hold a flat piece of material and a spring plate fastened to one of said plates and having a nose adapted to exert an edgewise pressure on the material inserted in said guideway.

3. A holder and carrier for a riveting machine having, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely disposed plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves forming a guideway adapted to receive and hold a flat piece of material, a spring member mounted on one of said plates for exerting an edgewise pressure on the material inserted in said guideway and a stop at one end of said guideway adapted to position said piece of material on said holder and carrier.

4. A riveting machine having, in combination, a slide, a holder embodying a pair of oppositely disposed plates spring mounted on said slide and recessed to receive a piece of flat material with a slot extending longitudinally thereof, said holder having a chamber between said plates adapted to receive and position a two-pronged rivet therein with said prongs in alignment with said slot, and a resilient member mounted on one of said plates for exerting a constant edgewise pressure on the fiat material inserted between said plates.

5. A riveting machine having, in combination, a slide, a holder comprising a pair of oppositely disposed plates spring mounted on said slide and recessed to receive and hold a piece of flat ma terial, said holder having a chamber between said plates adapted to receive and position a rivet therein, and a spring member mounted on one of said plates for exerting a constant edgewise pressure on the flat material inserted between said plates irrespective of any separating movement of said plates.

6. A riveting machine having, in combination, a slide, a holder embodying a pair of oppositely disposed plates spring mounted on said slide and recessed to receive a piece of flat material with a slot extending longitudinally thereof, said holder having a chamber between said plates adapted to receive and position a two-pronged rivet therein with said prongs in alignment with said slot, and a spring member fastened to one of said plates and provided with a nose for exerting a constant edgewise pressure on th flat material inserted between said plates irrespective of any separating movement of said plates.

'7. A holder and carrier for a riveting machine having, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely disposed plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves,.forming a guideway adapted to receive and hold a piece of material provided with a perforation or hole and a resilient member mounted on one of said plates for exerting a lateral pressure on the material inserted in said guide way.

8. A holder and carrier for a riveting machine having, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely disposed plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves, forming a guideway adapted to receive and hold a piece of material provided with a perforation or hole and a spring plate fastened to one of said plates and having a nose adapted to exert a lateral pressure on the material inserted in said guideway.

9. A holder and carrier for a riveting machine having, in combination, a slide, a pair of oppositely disposed spring arms fast to said slide and spaced apart, a pair of oppositely disposed plates fast to the lower ends of said arms, the under faces of said plates being provided with grooves forming a guideway adapted to receive and hold a piece of material provided with a perforation or hole, a spring member mounted on one of said plates for exerting a lateral pressure on the material inserted in said guideway and having a portion serving as a stop at one end of said guideway for positioning said piece of material in said guideway.

10. A riveting machine having, in combination, a slide, a holder embodying a pair of oppositely disposed plates spring mounted on said slide and recessed to receive a piece of material with a perforation or hole therein, said holder having a chamber between said plates adapted to receive and position a pronged rivet therein with said prong in alignment with said perforation or hole, and a resilient member mounted on one of said plates for exerting a constant lateral pressure on the material inserted between said plates.

11. A riveting machine having, in combination, a slide, a holder comprising a pair of oppositely disposed plates spring mounted on said slide and recessed to receive and hold a piece of material provided with a hole, said holder having a chamber between said plates adapted to receive and position a rivet therein, and a spring member mounted on one of said plates for exerting a constant lateral pressure on the material inserted between said plates irrespective of any separating movement of said plates.

12. A riveting machine having, in combination, a slide, a holder embodying a pair of oppo itely disposed plates spring mounted on said slide and recessed to receive a piece of material with a hole therein, said holder having a chamber between said plates adapted to receive and position a pronged rivet therein with said prong or prongs in alignment with said hole, and a spring member fastened to one of said plates and provided with a nose for exerting a constant lateral pressure on the material inserted between said plates irrespective of any separating movement of said plates.

13. A riveting machine having, in combination, a slide, a holder embodying a pair of op positely disposed plates spring mounted on said slide and recessed to form a chamber between said plates adapted to receive and position a rivet therein, said plates being recessed in their bottom ends to form a guideway to receive and hold a piece of material with a perforation or hole therein, and a spring member mounted on one of plates for exerting a constan+u lateral pressure on the material inserted in said guideway to hold it therein irrespective of the separation of said plates.

14. A riveting machine having, in combination, a slide, a holder embodying a pair of oppositely material inserted in said guidevvay to hold it therein irrespective of the separation of said plates and means for driving said rivet downwardly through said perforation or hole to fasten said piece of material to another piece of material.

ARTHUR R. HAVENER. 

